12-6315632-C-T

Position:

• chr12-6315632-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_001384598.1(PLEKHG6):​c.538C>T​(p.Leu180Phe) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: PLEKHG6 NM_001384598.1 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.12

Genes affected

PLEKHG6 (HGNC:25562): (pleckstrin homology and RhoGEF domain containing G6) Predicted to enable guanyl-nucleotide exchange factor activity. Predicted to be involved in regulation of small GTPase mediated signal transduction. Located in cell junction and centrosome. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.893

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PLEKHG6	NM_001384598.1	c.538C>T	p.Leu180Phe	missense_variant	5/16	ENST00000684764.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PLEKHG6	ENST00000684764.1	c.538C>T	p.Leu180Phe	missense_variant	5/16		NM_001384598.1	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 23, 2023

The c.538C>T (p.L180F) alteration is located in exon 5 (coding exon 4) of the PLEKHG6 gene. This alteration results from a C to T substitution at nucleotide position 538, causing the leucine (L) at amino acid position 180 to be replaced by a phenylalanine (F). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.85
BayesDel_addAF	Pathogenic	0.39	D
BayesDel_noAF	Pathogenic	0.32
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.51	D;.;D;.
Eigen	Pathogenic	0.89
Eigen_PC	Pathogenic	0.80
FATHMM_MKL	Uncertain	0.95	D
M_CAP	Uncertain	0.14	D
MetaRNN	Pathogenic	0.89	D;D;D;D
MetaSVM	Pathogenic	0.88	D
MutationAssessor	Pathogenic	4.3	H;.;H;.
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Uncertain	0.71	T
PROVEAN	Uncertain	-3.6	D;D;D;D
REVEL	Pathogenic	0.90
Sift	Uncertain	0.0010	D;D;D;D
Sift4G	Pathogenic	0.0	D;D;D;D
Polyphen		1.0	D;D;D;D
Vest4		0.79
MutPred		0.74		Gain of catalytic residue at I175 (P = 0.0118);Gain of catalytic residue at I175 (P = 0.0118);Gain of catalytic residue at I175 (P = 0.0118);.;
MVP		0.96
MPC		0.64
ClinPred		1.0	D
GERP RS		4.8
Varity_R		0.65
gMVP		0.70

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr12-6424798;